Ccs c mcp4922 dac kullanımı

#include <18F45K22.h>
#device ADC=10
#use delay(crystal=20000000)
//#use spi (MASTER, SPI1, MODE=3, BITS=8, STREAM=SPI_1)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,stream=PORT1)

int CS1=pin_D0, CS2=pin_D1, CS3=pin_D2;
#define LDAC pin_D3

#define DAC0  112           // dacA
#define DAC1  240          // dacB

#define SPI_MODE_0 (SPI_L_TO_H | SPI_XMIT_L_TO_H)
#define SPI_MODE_1 (SPI_L_TO_H)
#define SPI_MODE_2 (SPI_H_TO_L)
#define SPI_MODE_3 (SPI_H_TO_L | SPI_XMIT_L_TO_H)

int16 veri1=0,veri2=0;

          

 void dac_out(int CS, int dac_kanal, long data)
    {
       int byte1, byte0;
       byte1 = dac_kanal | (make8(data,1)); 
       byte0=make8(data,0);
      
       output_low(CS);
       delay_us(100);
       spi_write(byte1);
       spi_write(byte0);
       output_high(CS);
       delay_us(100);
       output_low(LDAC);
       delay_us(100);
       output_high(LDAC);

    }


void main()
{
setup_spi(SPI_MASTER | SPI_CLK_DIV_16 | SPI_L_TO_H | SPI_SAMPLE_AT_END);
  // setup_spi(SPI_MASTER | SPI_MODE_0 | SPI_CLK_DIV_4 );
   //setup_spi(SPI_MASTER | SPI_L_TO_H | SPI_CLK_DIV_16);
   output_high(CS1);
   output_high(CS2);
   output_high(CS3);
   output_low(LDAC);
   veri1=100;
   veri2=200;
   while(TRUE)
   {
      printf("veri1= %lu    veri2= %lu\n\r",veri1,veri2);
    
      dac_out(CS1,DAC0,veri1);
      delay_ms(2);
      dac_out(CS1,DAC1,veri1);
      delay_ms(2);
      dac_out(CS2,DAC0,veri2);
      delay_ms(2);
      dac_out(CS2,DAC1,veri2);
      delay_ms(2);
      

      veri1+=10;
       veri2+=10;
      
      if(veri1>4095){veri1=200;}
      delay_ms(2);
      
      if(veri2>4095){veri2=100;}
      delay_ms(2);
      
   }

}